Warrawoona Group
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The Warrawoona Group is a geological unit in Western Australia containing putative fossils of cyanobacteria cells. Dated 3.465 Ga, these microstructures, found in Archean chert, are considered to be the oldest known geological record of life on Earth.[1][2][3]
Quick Facts Type, Unit of ...
Warrawoona Group | |
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Stratigraphic range: Paleoarchean ~3465 Ma | |
Type | Geological group |
Unit of | Pilbara Supergroup |
Lithology | |
Primary | Chert |
Other | Archean felsic volcanic rocks |
Location | |
Coordinates | 21°42′S 118°0′E |
Region | Western Australia |
Country | Australia |
Extent | Pilbara craton |
Type section | |
Named for | Warrawoona |
Named by | Arthur Hugh Hickman |
Year defined | 1983 |
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